What is the S7+ driver licensing model like?
The underlying S7DOS layer counts total connections to unique IP addresses (of PLC Communication Processors CPs).
The pool of licensed connections is shared with every SIMATIC software on the same computer.
Therefore online-connections from TIA Portal or any WinCC at the same time will reduce the remaining licenses for WinCC OA and vice versa.
But even if you have parallel connections to the same PLC (same IP address) with multiple products on the same computer (e.g. TIA Portal & WinCC OA) they will be counted as one licensed connection on S7DOS.
See attached a small table to calculate the licenses for your needs.
We have also added H-PLC even if we know they are currently not available.
Please note: The config entry “UseConnections” from S7 driver is not available / necessary for the S7+ driver.